liteon 1633s worked fine for many months. BUT now it won’t read or write dvd of any kind .it won’t play movies anymore. it writes to dvds if new dvd r’s an verifys them but when i reinsert the dvds they ether come back saying no disk or unreconized format. :a any body have any ideas
What media are you using. Manufacturer? Media Code? If you don’t know the media code, use DVDCRYPTER or Nero CDSPEED to show the media code.
Have you installed any new software lately?